JPH01239775A - Electric contact molded in surface for manufacture of connector - Google Patents

Abstract

PURPOSE: To provide an easy-to-use connector, by arranging spring compressive- force retaining contacts connected to a wire positioning surface which provide satisfactory electric contacts by their arrangement in plural lines and spaced so as to avoid crosstalk, decreasing of voltage, and short-circuit. CONSTITUTION: By molding polymer insulating material on the surface of multiple contact elements 15 whose edges are integrated by a supporting band piece 16, electric contacts are created. Fitting protrusion 36 for interference and a recessed part 37 are placed in the longitudinal direction of a band piece 35, electric contacts 33 are positioned by placing a shoulder part 38 and an edge 39, lower wire supporting channel 41 and upper wire supporting pillar 42 are installed being matched with insulator removing contacts 40. The electric contacts 33 and similar second electric contacts 44 are arranged facing each other, being matched with a protrusion 36 and the recessed part 37, and are placed in a housing 50. A channel 60 and a post 61 in the housing 50 positions the conductor against a contact 40. Thus, an easy-to-use connector is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connector formed with individual contact elements, and in one feature, the conductor has a length of 0.63 m (0.025 m).
The present invention relates to a connector for use with an electrical cable element having a plurality of closely spaced electrical conductors, such as those spaced a center distance apart.

[Prior Art J Termination of flat cables (ter+ntnat+on) is well known and typically involves connecting the four wires of such a cable to individual contact elements within an insulated housing. ing. The contacts typically have ends configured to make electrical contact with individual wires of the cable. A cap is then lit onto the housing to hold the wire in contact with the contact element. Such a structure is disclosed in US Patent No. 3.4 showing a flat cable wire connector without brazing.
34°093@ and U.S. Patent No. 3,444.506. In contrast, the joints between the wires and contact elements of a flat cable are
No. 99 and U.S. Pat.

The wire spacing of flat cables is becoming smaller and smaller, i.e. 22-24 gauge solid copper wire (sol
id copper wire) 1.27m
+ (0,05i11) to 1.07 and 0.6'44s (0,04
25 and 0.00250 in), it has become increasingly difficult to obtain connections and small width elements, and it has become increasingly difficult to handle such elements. It is.

One solution has been to form contacts with a small overall width as shown in US Pat. No. 3,930.708. However, the wire elements described in this patent did not provide an economical connector as provided by the present invention. This is because it required more material and more handling to form the connector than the present invention.

The next improvement in connectors for closely spaced wires of flat cables is shown in US Pat. No. 4.009.922@. This patent discloses that the insulator of the connector is formed with a wire A7-support surface that is corrugated to form a lower wire support channel that is combined into one contact element between two upper wire support surfaces. It teaches structure. This structure forms alternating wire contacts such that the contact elements are in alternating rows of contacts, allowing sufficient space between the wires and contacts to avoid cross talk. .

However, the difficulty with this construction is that when working with flat cables having 30-34 gauge wire,
This makes it extremely difficult to handle the contact elements during the manufacture of the connector.

[Problem to be Solved by the Invention] The present invention provides an electrical contact in a form that is easy to handle and allows the manufacture of virtually any shape and type of connector to suit the customer's needs. With the goal.

[Means and effects for solving the problems] The connector according to the present invention has a termination socket (termtn).
ation 5ocket) or header and none 1! ?
Ru.

The contact according to the invention has two or more rows of contact elements, with wires A7- or contacts closely spaced, e.g. 0.63
It allows the manufacture of connectors for use as terminations for flat cables of 10-100 wires with spacings of 0.5 m (0.0250-0.02 in). The contacts of the present invention are arranged in multiple rows M
It is provided with spring-loaded contacts bonded to spaced wire locating surfaces to provide good electrical contact and avoid crosstalk, voltage sags, and short circuits.

According to the invention, a number of electrical contact elements having opposite ends and a contact device for connecting an electrical conductor and other electrical elements at said opposite ends and these contact elements are provided at their opposite ends. An electrical contact suitable for insertion or surface molding into a connector housing is provided, including an integrally molded polymeric strip intermediate the junction 1. The strip has contacts and means for aligning the strip relative to another strip and/or to the connector housing.

An electrical contact according to the invention is provided with a molded strip including spaced conductor positioning elements disposed along said strip to connect the wires of a flat cable to the contact point. Positioning is performed in relation to aX.

The electrical contact wire positioners ilA are arranged in an alternating relationship along the strip with respect to the contact system.

In practice, channels are formed in the strip to define a lower wire support surface that is aligned with the wire contacting devices of the contact elements, and these channels are located between approximately 1" adjacent contact elements. is positioned between the upper wire support surfaces.

An electrical contact according to the invention provides a number of contact elements arranged in a row, each contact element having opposite ends, one insulation removal wire receiving contact at one end; It has a strip of polymeric material molded onto the contact element intermediate the ends. The conductor support element has a support surface that lies on the plane of the end of the wire receiving contact. These support elements are separated by channels which allow wires from the flat cable to be forced into electrical contacts having wire-receiving contacts.

A plurality of similar rows of electrical contact elements with two rows in face-to-face relationship bound the insert 1- of the premolded housing or molded in! It is arranged as a nut to give the circuit board socket or socket the desired shape, length and type.

[Example 1 The invention will be described in detail below with reference to the accompanying drawings.

Referring now to the drawings, the present invention will now be described for use in the manufacture of electrical products requiring close arrangement of individual electrical contact elements. Initially the contact element is made of a flat sheet of the conductive metal material used for such elements, such as beryllium copper.

This is usually done by stamping forging.

The element of FIG. 1 is configured for use in a cable termination connector and includes a number of contact elements 15 joined together at one end by a support strip 16 as shown. 16 is joined to the contact element 15 at a part that can be easily broken in order to cut it. These contact elements 1
5 are each given a shape or shape characteristic that increases the ability to retain the contact elements within the molded strip molded between the contact elements. As shown in FIG. 1, this shape characteristic is defined by the misaligned portion 2 of the contact element 15 formed by two approximately 90" bends in the contact element.
It is 0.

As shown in FIG. 2, contact element 15 is surface molded from a polymeric insulating material to form electrical contact 33. As shown in FIG. Strip 3 in position at misaligned portion 20
It provides a means for aligning each contact element molded onto the contact line 15 with the other contacts and the housing. The strip 35 is provided with alignment devices in the form of cooperating interference fitting projections 36 and recesses 37 spaced along its length. The strip 35 further includes a shoulder portion 38.
and the end portion 39, and these are the electrical contacts 33.
It forms a positioning device. The strip 35 is further provided with a conductor support device for closely aligning the conductor with the contact or insulation removed contact portion 40 of the contact element 15. These V# disconnection carriers include lower wire A7-support channels 41 aligned with the contacts 40, allowing the conductors to be pushed into engagement with the U-shaped contacts 40.

These channels 41 separate upper wire support pillars 42 having troughs formed thereon that engage and support the insulation-coated conductors at a location above the contacts 40. The edges 43 of each pillar 42 serve to separate the conductors 64 of the flat cable 65, as will be explained below.

FIG. 3 shows an electrical contact 33 molded in such a way that the support strip 16 is separated from the contact element 15 and the strip 35.
It shows. In this configuration, the electrical contacts are arranged in opposing relationship with a similar second electrical contact 44 of the same construction, which together with the electrical contacts 33 positions the two rows of contact elements in opposing offset relationship. That's what I do. Such a relationship is such that multiple contact elements of one electrical contact engage alternate wires 64 of the ribbon-like flat cable 65, and multiple contact elements of the other electrical contact engage the other wires. The contact portion 40 is positioned at the position where the contact point 40 is located. Opposing electrical contacts 33 and 4 as shown in FIG.
4 are aligned by cooperating protrusions 36 and recesses and 37, respectively.

When arranged in two rows of contact elements in this way, the electrical contacts are connected to the connector housing 5 as shown in FIG.
It is located within 0. The housing 50 is a pre-molded connector housing for a socket connector that includes a pair of electrical contacts 33 and 44.
It has a central rectangular cavity 51 shaped to receive the . The housing 50 has a plurality of chambers 5 having access openings 53.
2, these chambers form the wiping contact part of the contact element 15.
tportion) 54. These access openings 53 are adapted to receive external electrical contacts and to make appropriate connections with the contact elements 15. The housing 50 is provided with an end wall 56 and a side wall 57 which bound the cavity 51. The bottom of the cavity 51 is perforated in order to insert the contact part 54 into the chamber 52, and forms a base 58 on which the n part 38 of the strip 35 is placed.

The side wall 57 of the housing 50 has a channel 60 on its top surface.
are provided, and these channels separate the hammered posts 61 and separate the individual conductors 6 in the cable 65.
It is designed to be connected to 4. The posts 61 on one wall 57 are located in aligned relationship with the pillars 42 of the adjacent electrical contacts. Channels 60 are arranged to align with adjacent channels 41 of one strip 35 to position the 1 m body relative to contact 40. Channel 60 in side wall 57 is laterally aligned with boss 1 on the opposite side of the housing 61 so that wire A7- adjacent contact 40 is spaced above adjacent contact 40 and one wire This is designed to limit interference between signals carried by a wire and signals carried by an adjacent wire.

As shown in FIG. 7, the assembled connector housing 50 and electrical contacts 33 and 44 are adapted to receive a ribbon-like flat cable 65. In this example, the ribbon cable wire is 0.635a*(
electrical contact 3
Contacts 3 and 44 are very closely spaced for the IR elements.

A cap 66 or tool (not shown) separates the 1 m rest 4 of the cable to force the conductor wire of the ribbon cable 65 into contact engagement with the deinsulated contact portion 4o of the contact element 15. used for. The knob 66 or tool has a surface that mates with the post 61 of the housing 50 and the pillar 42 of the electrical contacts 33 and 44 to separate the individual conductors of the cable and separate the individual conductors of the cable from alternating wires in the channel and from one side to the other. A device is provided for positioning the adjacent wires of the channel and the channel boss on the other side as shown in FIG. Cap 66 (see FIG. 8a) has conductor support surfaces 60a separated by channels 61a.
and a support surface 41a separated by a channel 42a.
has been established. These surfaces 60a and 41a form an arcuate chain portion similar to the pillar 42 and the boss 1-61. These edges 60i11 and 41a cooperate with the edges of the post 61 and the pillar 42 to shear the insulation of the cable between the conductors 64 and connect the conductors to the contact portion 40.
Make it so that it generates a strong 11 dJ inside. The cap 66 has a suitable locking device to lock the cap in place on the housing 50 once the cap is positioned and the wire connection of the cable 65 to the contact element is completed. It has become. The illustrated locking device includes a resilient U-shaped pawl 67 at the end of the cap. This nail 67
The locking portion is received over the detent 68 and engages the underside of the detent to hold the cap in place.

Although the invention has been described above with reference to one embodiment of the electrical connector illustrated and the variant embodiments described above, other embodiments may be used without departing from the scope of the invention as defined by the claims. Changes must be made.

[Effects of the Invention] Since the present invention is configured as described above, the wires are arranged in a plurality of alternating rows to provide good electrical contact and are spaced apart to avoid voltage drop and short circuit. The electrical contact is configured with a spring compression force contact bonded to a wire locating surface that is easy to handle and allows the manufacture of virtually any shape and type of connector to meet customer requirements. It is provided.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a strip of contact elements used to manufacture a cable termination socket connector; 2 is a perspective view of a contact element in which a polymeric material support strip is shown molded onto the strip of the contact element of FIG. 1; FIG. 3 is a perspective view of the strip shown in FIG. 2 with the support strip shown removed; FIG. FIG. 4 is a vertical cross-sectional view of two strips as shown in FIG. 3 placed in a face-to-face space; FIG. FIG. 5 is a perspective view of the connector housing. 6 is a vertical sectional view of the housing of FIG. 5; FIG. 7 is a vertical view of the housing of FIG. 5 in which the strip of FIG. 4 is placed; FIG. FIG. 8 is a perspective view of the cap of the connector housing constructed as shown in FIGS. 5 and 6. FIG. ′! Figure X18a is a cross-sectional view of the cap of Figure 8. FIG. 9 is a perspective view of a termination connector formed by the parts of FIGS. 3, 5, and 8 and the end of a cable connected thereto; FIG. 15...Contact element 16...Support band piece 20...Displacement portion 33.44...Electrical contact 35... Strip 40...Insulator removed contact part 41...
...Lower wire support channels 41a, 60a...Conductor support surface 42...Upper wire support pillars 42a, 6
0,618--Channel 43...Edge 50...Connector housing 52...
... Chamber 54 ... Contact portion 61 ... Post 64 ... Conductor 65 ... Flat cable 66 ...・Cap 67...Claw 68...Detent portion.

Claims (2)

[Claims] (1) Suitable for insertion into a connector housing containing a number of electrical contact elements having opposite ends and a contact device at said opposite ends for connecting one electrical conductor and another electrical component; an integrally molded electrical contact having a U-shaped insulation removal contact portion disposed in one plane at one end of the contact device and joining the contact element midway between the opposite ends; in said electrical contact, said electrical contact comprising a polymeric strip which is attached to said contact portion (40) and having an alignment device for positioning said contact element relative to a second strip or connector component; An electrical contact comprising spaced conductor positioning elements (41, 42) disposed along said strip adjacent to said strip. 2. The electrical connector of claim 1, wherein the connector includes a plurality of electrical contact elements having opposite ends and a contact device at the opposite ends. ) and having a sidewall (57) separated by a conductor support channel (60) in a second plane, the housing (50) supporting one end of the contact element; the housing (50) is formed with a plurality of conductor support surfaces (61) in a plane aligned with the contact portion (40) and connected to one conductor; and a conductor support channel. Cap (66) having multiple conductor support surfaces (60a) separated by (61a)
the conductor support surface (60a) on the cap;
) is the conductor support channel (60) of the housing.
), and the conductor support surface (61) of the housing is configured to fit snugly within the conductor support channel (61a) of the cap; said cap (66) having a flat supporting surface and spaced apart to support alternating conductors of a multi-wire cable; and said wire supporting surface having a trough-like edge (43); of the insulation between adjacent conductors of the cable when the cap (66) is placed on the housing (50) and the cable (65) is intermediate therebetween. an electrical connector adapted to shear;